i have both a gen 2 and a gen 3 X1 carbon.. i like the gen 3 for the real mouse buttons and Fn keys..
both are touch and max resolution..
i've not noticed any flicker on either one of these..
i did see this video on youtube relating to an intel utility used to modify the PWM on another thinkpad model..
it might help you.. or not.. https://www.youtube.com/watch?v=ycKzTDnTYTQ

err.. are you really in new york..? your IP shows germany..

Bill Morrow, kept by parrots & cockatoos
Sysop - forum.thinkpads.com

*She was not what you would call refined,She was not what you would call unrefined,She was the type of person who kept a parrot.
~~~Mark Twain~~~